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Comparing libev/ev_port.c (file contents):
Revision 1.25 by root, Mon Jan 17 12:11:12 2011 UTC vs.
Revision 1.31 by root, Mon Jul 1 20:47:38 2019 UTC

1/* 1/*
2 * libev solaris event port backend 2 * libev solaris event port backend
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
53#include <poll.h> 53#include <poll.h>
54#include <port.h> 54#include <port.h>
55#include <string.h> 55#include <string.h>
56#include <errno.h> 56#include <errno.h>
57 57
58void inline_speed 58inline_speed
59void
59port_associate_and_check (EV_P_ int fd, int ev) 60port_associate_and_check (EV_P_ int fd, int ev)
60{ 61{
61 if (0 > 62 if (0 >
62 port_associate ( 63 port_associate (
63 backend_fd, PORT_SOURCE_FD, fd, 64 backend_fd, PORT_SOURCE_FD, fd,
… …
66 0 67 0
67 ) 68 )
68 ) 69 )
69 { 70 {
70 if (errno == EBADFD) 71 if (errno == EBADFD)
72 {
73 assert (("libev: port_associate found invalid fd", errno != EBADFD);
71 fd_kill (EV_A_ fd); 74 fd_kill (EV_A_ fd);
75 }
72 else 76 else
73 ev_syserr ("(libev) port_associate"); 77 ev_syserr ("(libev) port_associate");
74 } 78 }
75} 79}
76 80
… …
126 130
127 fd_change (EV_A_ fd, EV__IOFDSET); 131 fd_change (EV_A_ fd, EV__IOFDSET);
128 } 132 }
129 } 133 }
130 134
131 if (expect_false (nget == port_eventmax)) 135 if (ecb_expect_false (nget == port_eventmax))
132 { 136 {
133 ev_free (port_events); 137 ev_free (port_events);
134 port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1); 138 port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
135 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); 139 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
136 } 140 }
137} 141}
138 142
139int inline_size 143inline_size
144int
140port_init (EV_P_ int flags) 145port_init (EV_P_ int flags)
141{ 146{
142 /* Initialize the kernel queue */ 147 /* Initialize the kernel queue */
143 if ((backend_fd = port_create ()) < 0) 148 if ((backend_fd = port_create ()) < 0)
144 return 0; 149 return 0;
145 150
146 assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD)); 151 assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD));
147 152
148 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ 153 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
149 154
155 /* if my reading of the opensolaris kernel sources are correct, then
156 * opensolaris does something very stupid: it checks if the time has already
157 * elapsed and doesn't round up if that is the case,m otherwise it DOES round
158 * up. Since we can't know what the case is, we need to guess by using a
159 * "large enough" timeout. Normally, 1e-9 would be correct.
160 */
150 backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */ 161 backend_mintime = 1e-3; /* needed to compensate for port_getn returning early */
151 backend_modify = port_modify; 162 backend_modify = port_modify;
152 backend_poll = port_poll; 163 backend_poll = port_poll;
153 164
154 port_eventmax = 64; /* initial number of events receivable per poll */ 165 port_eventmax = 64; /* initial number of events receivable per poll */
155 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); 166 port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
156 167
157 return EVBACKEND_PORT; 168 return EVBACKEND_PORT;
158} 169}
159 170
160void inline_size 171inline_size
172void
161port_destroy (EV_P) 173port_destroy (EV_P)
162{ 174{
163 ev_free (port_events); 175 ev_free (port_events);
164} 176}
165 177
166void inline_size 178inline_size
179void
167port_fork (EV_P) 180port_fork (EV_P)
168{ 181{
169 close (backend_fd); 182 close (backend_fd);
170 183
171 while ((backend_fd = port_create ()) < 0) 184 while ((backend_fd = port_create ()) < 0)

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